john blackstone reports from seattle that supporters wasted no time celebrating. >> three, two, one -- whew! >> reporter: at the stroke of midnight cheers in seattle of marijuana officially becoming legal in washington state. >> yeah! >> reporter: an impromptu celebration was head appropriately enough at the space needle a seattle high point. did you ever think you'd see this day? >> i certainly did not. i did not. >> reporter: the air was filled with the scent of victory. for those who campaigned for this night. although, that itself is stretching the new law. it is not legal to use marijuana in public, just like alcohol. and while it is now legal for those 21 and over to buy marijuana, it is not yet legal to sell it. the state still has to write rules for licensing marijuana retailers. >> this is the beginning of -- >> reporter: washington voters passed the law partly because of the efforts of one well-traveled resident of the state. >> hi. i'm rick steves. >> reporter: rick steves for 20 years hosted a popular public travel show was prominent among those campaigning for legal marij